<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<ul>
    <li>
        <a href="#">德玛西亚</a>
        <span>hello</span>
        </li>
    <li>
        <a href="#">德玛西亚</a>
        <span>hello</span>
        </li>
    <li>
        <a href="#">德玛西亚</a>
        <span>hello</span>
        </li>
    <li>
        <a href="#">德玛西亚</a>
        <span>hello</span>
        </li>
</ul>
</body>
<ml>
    <script src="js/jquery-3.2.1.js"></script>
    <script>
        $(function () {
            $("ul li a").css("textDecoration","none");
            $("ul li").find("span").css("color","yellow");
        })
    </script>